special train的用法和樣例：
例句
- In the near future more dedicated unit train and Reefer-on-Rail services will be added to this network.
在不久的將來，我們會增加更多集裝箱專列火車和冷凍集裝箱專列火車服務。 - News of the visit first leaked out on Wednesday as the reclusive Mr Kim returned home on a private train.
消息是在周三當不怎麼露面的金正日乘專列返回朝鮮時首次透漏的。
